/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    padding-top: 140px; /* 更新为新的导航栏高度 */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 140px; /* 增加高度以适应更大的logo */
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    border-radius: 12px; /* 放大后相应调整圆角 */
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #2563eb;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-item {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
    padding: 10px 15px;
    display: block;
    white-space: nowrap;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    border-radius: 3px;
    transition: 0.3s;
}

/* 英雄区域样式 */
.hero {
    position: relative;
    height: calc(100vh - 140px); /* 更新为新的导航栏高度 */
    min-height: 500px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.8) 0%, rgba(59, 130, 246, 0.6) 100%);
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    width: 100%;
}

.hero-title {
    margin-bottom: 20px;
}

.title-main {
    display: block;
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 10px;
    animation: fadeInUp 1s ease-out;
}

.title-sub {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
    transform: translateY(-2px);
}

.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 2;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    transform: scale(1.2);
}

/* 动画关键帧 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 服务区域样式 */
.services {
    padding: 100px 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 20px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    transition: all 0.3s ease;
    z-index: -1;
}

.service-card:hover::before {
    left: 0;
}

.service-card:hover {
    transform: translateY(-10px);
    color: white;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    font-size: 2rem;
    color: white;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: white;
    color: #2563eb;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1e293b;
    transition: color 0.3s ease;
}

.service-card:hover .service-title {
    color: white;
}

.service-description {
    margin-bottom: 25px;
    line-height: 1.7;
    color: #64748b;
    transition: color 0.3s ease;
}

.service-card:hover .service-description {
    color: rgba(255, 255, 255, 0.9);
}

.service-features {
    list-style: none;
    text-align: left;
}

.service-features li {
    padding: 8px 0;
    position: relative;
    padding-left: 25px;
    color: #64748b;
    transition: color 0.3s ease;
}

.service-card:hover .service-features li {
    color: rgba(255, 255, 255, 0.9);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 8px;
    color: #2563eb;
    font-weight: bold;
}

.service-card:hover .service-features li::before {
    color: white;
}

/* 案例展示样式 */
.cases {
    padding: 100px 0;
    background: white;
}

.cases-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 25px;
    border: 2px solid #e2e8f0;
    background: transparent;
    color: #64748b;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.tab-btn.active,
.tab-btn:hover {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-item {
    border-radius: 15px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.case-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(59, 130, 246, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-item:hover .case-overlay {
    opacity: 1;
}

.case-info {
    text-align: center;
    color: white;
    padding: 20px;
}

.case-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.case-info p {
    font-size: 1rem;
    opacity: 0.9;
}

/* 关于我们样式 */
.about {
    padding: 100px 0;
    background: #f8fafc;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #64748b;
    margin-bottom: 40px;
}

.about-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    color: #64748b;
    font-weight: 500;
}

.about-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* 客户评价样式 */
.testimonials {
    padding: 100px 0;
    background: white;
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-item {
    text-align: center;
    padding: 40px;
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.testimonial-item.active {
    display: block;
}

.testimonial-content {
    margin-bottom: 30px;
}

.testimonial-content p {
    font-size: 1.3rem;
    line-height: 1.8;
    color: #64748b;
    font-style: italic;
    position: relative;
}

.testimonial-content p::before,
.testimonial-content p::after {
    content: '"';
    font-size: 3rem;
    color: #2563eb;
    position: absolute;
    top: -10px;
}

.testimonial-content p::before {
    left: -30px;
}

.testimonial-content p::after {
    right: -30px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    color: #1e293b;
    margin-bottom: 5px;
}

.author-info span {
    color: #64748b;
    font-size: 0.9rem;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.contact-details h3 {
    color: #1e293b;
    margin-bottom: 5px;
    font-weight: 600;
}

.contact-details p {
    color: #64748b;
    font-size: 1.1rem;
}

/* 联系方式中的二维码样式 */
.qrcode-contact .contact-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.qrcode-contact .qrcode-container {
    margin-top: 10px;
    text-align: left;
}

.qrcode-contact .qrcode {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-bottom: 8px;
    background: white;
    padding: 4px;
}

.qrcode-contact .qrcode-text {
    color: #64748b;
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    background: #f8fafc;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    background: white;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚样式 */
.footer {
    background: #1e293b;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    border-radius: 12px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    margin-bottom: 20px;
    line-height: 1.6;
    color: #94a3b8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: #334155;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.footer-section h3 {
    margin-bottom: 20px;
    color: white;
    font-weight: 600;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-links i {
    margin-right: 8px;
    color: #2563eb;
}

/* 页脚二维码特殊样式 */
.qrcode-footer {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.qrcode-footer .footer-qrcode-container {
    margin-top: 10px;
    margin-left: 0; /* 移除图标后不需要左边距 */
}

.qrcode-footer .qrcode {
    width: 80px;
    height: 80px;
    border-radius: 6px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
    margin-bottom: 8px;
    background: white;
    padding: 3px;
}

.qrcode-footer .qrcode-text {
    color: #94a3b8;
    font-size: 0.75rem;
    line-height: 1.3;
    margin: 0;
    text-align: center;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #334155;
    color: #94a3b8;
}

/* 备案号链接样式 */
.beian-link {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.beian-link:hover {
    color: #cbd5e1;
    text-decoration: underline;
}

/* 页脚二维码样式（备用） */
.footer-qrcode-container {
    text-align: center;
    margin-top: 10px;
}

.footer-qrcode-container .qrcode {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-bottom: 10px;
    background: white;
    padding: 5px;
}

.footer-qrcode-container .qrcode-text {
    color: #94a3b8;
    font-size: 0.85rem;
    line-height: 1.4;
    margin: 0;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.back-to-top.show {
    display: flex;
}

/* 浮动联系按钮 */
.floating-contact {
    position: fixed;
    bottom: 100px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.phone-btn {
    background: #10b981;
}

.email-btn {
    background: #f59e0b;
}

.float-btn:hover {
    transform: scale(1.1);
    animation: none;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 140px; /* 更新为新的导航栏高度 */
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0;
        padding: 0;
        width: 100%;
    }
    
    .nav-link {
        padding: 15px 20px;
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .title-main {
        font-size: 2.5rem;
    }

    .title-sub {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats {
        justify-content: space-around;
        gap: 20px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .testimonial-content p::before,
    .testimonial-content p::after {
        display: none;
    }

    .floating-contact {
        bottom: 80px;
        right: 20px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
    
    /* 移动端二维码优化 */
    .qrcode-contact .qrcode {
        width: 80px;
        height: 80px;
    }
    
    .qrcode-contact .qrcode-text {
        font-size: 0.8rem;
    }
    
    .footer-qrcode-container .qrcode {
        width: 70px;
        height: 70px;
    }
    
    .footer-qrcode-container .qrcode-text {
        font-size: 0.7rem;
    }
    
    .qrcode-footer .footer-qrcode-container {
        margin-left: 0;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .nav-container {
        padding: 0 15px;
    }

    .hero-content {
        padding: 0 15px;
    }

    .title-main {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .btn {
        padding: 12px 25px;
        font-size: 14px;
    }

    .service-card {
        padding: 30px 20px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .about-stats {
        gap: 15px;
    }

    .contact-form {
        padding: 25px 15px;
    }
}

/* AOS动画样式 */
[data-aos="fade-up"] {
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
    opacity: 1;
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
    opacity: 1;
}

[data-aos="fade-left"] {
    transform: translateX(30px);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
    opacity: 1;
}